Tile scoring and breaking device



Aug. 23, 1932. s. POSTLEY 1,873,721

TILE SCORING AND BREAKING DEVICE Filed April 19, 19:52 2 Sheets-Sheet 1 \\\\\\\\&5 ///////zx 7 Z- 7 INVENTOR. L Z3 SAHF RD P LEY.

A TTORNEYS.

Aug. 23, 1932. 5, PQSTLEY 1,873,721

TILE SCORING AND BREAKING DEVICE Filed April 19, 1932 2 Sheets-Sheet 2 I N VEN TOR. SAN E OR D PDS'I'LEI A TTORNEYS.

Patented Aug. 23, 1932 UNITED STATES PATENT OFFICE TILE SCORING AND BREAKING DEVICE Application filed .April 19,

This invention relates to improvements in devices for scoring and breaking tile and the like slabs.

The principal object of the invention is to provide a device wherein a tile or glass plate mag be out and broken with great precision.

further object is to produce a device which is simple to operate.

A further object is to produce a device which is economical to manufacture and one which is readily portable. Other objects and-advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Fig. 1 is a side elevation of my device showing a portion thereof in cross section,

Fig. 2 is an enlarged detail view taken on the line 22 of Fig. 1,

Fig. 3 is a top plan view of the tile holding table,

ig. 4 is a cross sectional view taken on the line 4-4 of Fig. 3, Fig. 5 is an enlarged detail view showing the action of the breaking arms, and

Fi 6 is a detail view showing the manner in w 'ch the bar is ositioncd.

In the breaking 0 glass, tile, and other vitreous roducts it has been common to employ a g ass cutter or file or other sharp instrument to first score the surface of the tile after which pressure u on the opposite sides of the score results in t e tile breaking along the scoring. Sometimes this break is not even, due to uneven pressure and imperfect scoring, and as a result each cutting operation was more or less of a gamble as to the outcome. Applicant has therefore devised a very simple arrangement whereby the results obtained are uniform.

In the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a work supporting surface having a slot 6 cut therethrou h, the

3 urpose of which will be later seen. et in a depression upon this table is a yielding sec- 1932. 9 Serial No. 806,243.

tion 7 which has a tapered cross section (see Fig. The small end of this yielding sect1on 1s supported by a spring 8 so that the top thereof is flush with the top of the work supporting surface 5. An angular clamp 9 is secured to the work support 5. A bracket 12 is secured to the support 5 at one edge thereof and is adapted to slid-ably support one end of an arm 13. This sliding connection is possible through the medium of a nut 14 which is threadedly positioned upon a bolt 16 at a point above the arm 13. A spring 17 surrounds the bolt at a point below the arm 13 and therefore by raising or lowering the nut 14 the position of the arm 13 will be raised or lowered. This is to take care of various thicknesses of tile being cut.

Referring now to Fig. 2 it will be noted that I have provided a slider 18 which is movable on the arm 13 and carries a cutting roller 19 suspended therefrom. A roller 21 on the slider bears upon the undersurface of the arm 13 with the result that by pushing down upon the arm 13 pressure may be transferred through the roller 21 to the cutting wheel 19. This slider also carries diverging breaker arms 22 which extend on oppo-v site sides of the cutter 19 and have their ends bent downwardly with the result that as the cutter wheel advances from the position in Fig. 1 to the position in Fig. 2 through the movement of the slider with relation to the arm, it will be apparent that as the cutter drops oil from the tile shown at A, it will have produced a scoring across the surface of the tile and immediately the breaker arms 22 will come into contact with the surface of the tile and upon opposite sides of a breaker strip 23 carried in the work support 5 at a point adjacent the opening 6. As the yielding section 7 gives it will be apparent that while this section assisted in holding the tile A level during the cutting operation, it will give sufficiently to permit a bending action of the tile and consequently a breaking of the same. Thus it will be apparent that by placing tiles upon the devices in various positions, various cuts may be made and portions broken therefrom in a manner which will be eflicient,

91501! and will produce an accurate cutting 1 It is to be understood that the form of my invention herewith shown and described 5 is to be taken as a preferred example of the same and that various changes relative to the material, size, shape and arrangement of arts may be resorted to without departing v om the spirit of the invention. Having thus described my invention, I

claim 1. In a device of the character described, a work support, an arm supported above and extending over said work support, a sliding cutter carried on said arm, breaker arms extending on opposite sides of said cutter and ads. ted to engage the work operated on by sai cutter to produce a bending action on the opposite sides thereof. 2. In a device of the character described, a work sup ort, an arm adjustably mounted above sauf work sup ort, a breaker strip carried upon said wor support at a point beneath said am, a slide carried on said arm, 35 a cutter mounted on said slider, and a pair of breaker arms supported on said slide and extending on opposlte sides of said cutter whereby work being scored by said cutter will be bent over said breaker strip through the action of said arms on said work.

3. In a device of the character described a work sup ort, a yielding section mounted on said work support, a breaker strip mounted on said support, an arm mounted above 35 said breaker strip and substantially parallel to said work support, a slider movable over said arm, a roller contacting the lower surface of said slider, a cutter mounted on said slider and adapted to be brought into work mounted on said work support, whereby said work may be scored at a point above said breaker strip, and a pair of breaker arms carried on said slider and adapted to en said work after said work has been 45 sco xyi so as to place pressure on said work on the opposite sides of said breaker strip.

IntestimonywhereofIaflixm si atum.

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